'X Factor' auditions continue in Seattle

X Factor auditions continued this week as the show visited Seattle to search for America's next singing superstar.

Thousands of people queued outside the Key Arena on Wednesday for their chance at moving one step closer to the $5 million recording contract prize.

It marks the fourth open audition to be held for the upcoming Fox competition, which invites singers and groups from the age of 12 years old to enter. Record-breaking auditions have already been held in Los Angeles, Miami and Newark, where more than 20,000 people lined up for their chance to perform.

Open auditions continue at the Sears Centre Arena, Chicago on April 27, and the Dallas Convention Center, Dallas on May 26.

Meanwhile, it still has not been confirmed who will join Simon Cowell and former Island Def Jam chairman L.A. Reid on the judging panel. Cowell appeared to suggest last week that Mariah Carey will have a role on the show "in some form", but it has not been confirmed whether that would be in a judging role or doing something else.